YEAR(S) | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP | OCT | NOV | DEC | ANN | |||||||||||||
1892 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 60.94 | 60.94 | k | |
1893 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1894 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 66.94 | 66.94 | k | |
1895 | 66.23 | 73.86 | 79.55 | 87.70 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 76.83 | h | ||||
1896 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1897 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1898 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1899 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 92.60 | 83.48 | 73.73 | 69.03 | 79.71 | h | ||||
1900 | 68.73 | e | 68.54 | 75.97 | 72.47 | 89.10 | 97.40 | ----- | z | 94.45 | 89.50 | 81.68 | 77.93 | 67.68 | 80.31 | a | ||||||||||
1901 | ----- | z | 66.46 | 71.58 | 80.87 | 85.10 | 95.60 | 96.45 | 91.84 | 91.34 | a | 82.62 | b | 76.20 | 67.33 | a | 82.31 | a | ||||||||
1902 | 63.65 | 70.55 | q | 66.74 | 86.50 | 86.28 | b | 97.90 | 92.87 | 88.97 | 88.76 | a | 84.13 | a | 66.43 | ----- | z | 82.22 | b | |||||||
1903 | 62.14 | i | 60.75 | 71.32 | 78.67 | 83.61 | 93.90 | 95.81 | 94.32 | ----- | z | 82.26 | 79.50 | 65.87 | 80.60 | b | ||||||||||
1904 | 64.61 | 73.41 | 78.68 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 72.23 | i | |||
1905 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1906 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1907 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1908 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1909 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 98.17 | 95.35 | 91.10 | 87.93 | 85.97 | 75.77 | 61.10 | 85.05 | e | |||||||
1910 | 64.74 | 70.04 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 67.39 | j | ||
1911 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1912 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z |
1913 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 59.81 | 59.81 | k | |
1914 | 66.90 | 64.93 | 71.29 | 78.53 | 86.65 | 92.30 | 88.77 | 90.26 | 88.30 | 77.03 | 70.97 | 56.55 | 77.71 | |||||||||||||
1915 | 56.77 | 61.86 | 65.03 | 72.17 | 80.13 | 94.33 | 89.58 | 92.77 | e | 88.73 | 85.97 | 73.13 | 62.00 | a | 76.87 | |||||||||||
1916 | 60.81 | 71.41 | 75.81 | 77.62 | d | 85.42 | ----- | z | 90.65 | k | 87.68 | l | 88.47 | 79.03 | 73.97 | 60.48 | 74.78 | c | ||||||||
1917 | 58.13 | 65.71 | 68.97 | 75.07 | 79.13 | 96.73 | 90.73 | a | 90.70 | a | 87.20 | 85.68 | 77.13 | 72.77 | 79.00 | |||||||||||
1918 | 59.97 | 67.36 | 70.03 | 76.60 | 81.03 | 95.37 | 93.35 | 89.65 | 91.47 | 82.65 | 66.87 | 58.61 | 77.75 | |||||||||||||
1919 | 60.26 | 58.39 | 66.81 | 78.23 | 84.35 | 95.60 | 88.26 | 91.94 | 86.90 | 76.68 | 67.80 | 66.90 | 76.84 | |||||||||||||
1920 | 61.48 | 65.38 | 67.23 | 71.30 | 85.90 | a | 93.00 | 97.35 | 88.81 | 88.20 | 78.81 | 71.77 | 62.90 | 77.68 | ||||||||||||
1921 | 64.19 | 66.68 | 74.67 | y | 75.87 | 83.29 | 94.63 | 91.06 | 87.16 | 89.13 | 85.77 | 75.93 | 65.94 | 79.97 | a | |||||||||||
1922 | 59.42 | 65.14 | 66.16 | 72.63 | 87.29 | 97.33 | 93.55 | 91.77 | 90.30 | 83.97 | 68.20 | 66.84 | 78.55 | |||||||||||||
1923 | 67.97 | 62.82 | 67.16 | 75.60 | 88.26 | 92.60 | 91.84 | 86.74 | 87.47 | 81.52 | 66.60 | 57.90 | 77.21 | |||||||||||||
1924 | 61.71 | 69.00 | 63.58 | 72.87 | 86.81 | 98.70 | 92.90 | 95.19 | 90.80 | 84.84 | 77.17 | 61.71 | 79.61 | |||||||||||||
1925 | 64.48 | 72.43 | 76.26 | 82.20 | 89.45 | 90.63 | 93.48 | 89.00 | 90.53 | 78.77 | 70.17 | 63.29 | 80.06 | |||||||||||||
1926 | 60.19 | 70.89 | 70.26 | 74.23 | 85.16 | 96.83 | 95.65 | 93.90 | 88.34 | a | 83.42 | 77.80 | 58.06 | 79.56 | ||||||||||||
1927 | 71.94 | 67.93 | 69.48 | 77.93 | 88.74 | 93.57 | 96.42 | 90.58 | 87.63 | 82.61 | 77.50 | 59.65 | 80.33 | |||||||||||||
1928 | 67.42 | 65.69 | 75.81 | 80.45 | a | 87.17 | a | 96.07 | a | 98.32 | 92.19 | 91.60 | 81.77 | 69.60 | 63.52 | 80.80 | ||||||||||
1929 | 62.33 | a | 62.71 | 70.30 | a | 77.97 | 87.65 | 98.03 | 93.90 | 91.29 | 89.45 | a | 82.42 | 71.73 | 72.13 | 79.99 | ||||||||||
1930 | 58.94 | 73.29 | 70.10 | a | 80.87 | 81.55 | 95.77 | 91.74 | 93.71 | 91.28 | a | 82.10 | 68.10 | a | 61.19 | 79.05 | ||||||||||
1931 | 62.13 | 61.75 | 74.47 | a | 79.07 | 89.39 | 94.60 | 96.71 | 89.39 | 89.60 | 85.13 | 68.75 | f | 62.13 | 80.40 | a | ||||||||||
1932 | 57.16 | 65.82 | a | 71.65 | 81.14 | a | 85.90 | 96.10 | a | 92.68 | 92.68 | 91.93 | 81.39 | 79.37 | 58.97 | 79.57 | ||||||||||
1933 | 60.53 | a | 62.29 | 75.65 | 75.31 | a | 83.52 | 95.37 | 95.87 | 94.10 | 91.53 | 83.42 | 76.30 | 71.16 | 80.42 | |||||||||||
1934 | 65.77 | 71.58 | b | 80.10 | a | 79.52 | a | 86.16 | 89.37 | c | 96.39 | 89.55 | 85.83 | 83.16 | 68.34 | a | 63.55 | k | 81.43 | a | ||||||
1935 | ----- | z | 64.07 | 69.40 | a | 78.97 | 78.06 | 92.72 | a | 97.39 | 90.23 | 88.20 | 80.10 | 67.43 | 63.61 | 79.11 | a | |||||||||
1936 | 66.00 | 65.93 | 72.77 | a | 83.40 | 92.03 | 99.33 | 97.90 | 93.65 | 88.80 | 82.81 | 72.17 | 64.58 | 81.61 | ||||||||||||
1937 | 54.46 | c | 67.72 | c | 70.00 | 82.00 | 89.00 | 96.50 | 98.48 | 95.52 | 91.83 | 86.68 | 78.33 | 68.55 | 81.59 | |||||||||||
1938 | 69.39 | 68.46 | 73.68 | 81.70 | 89.90 | 97.57 | 96.23 | 96.67 | a | 94.30 | 83.60 | u | 74.83 | 68.31 | b | 82.82 | a | |||||||||
1939 | 64.23 | 61.29 | 74.55 | 82.80 | 89.68 | 97.43 | 94.35 | 91.74 | 88.67 | 81.61 | 72.33 | 71.74 | 80.87 | |||||||||||||
1940 | 66.00 | 65.34 | 74.81 | 79.90 | a | 90.58 | 96.40 | 98.84 | 92.97 | 91.40 | 83.10 | 70.20 | 66.80 | a | 81.36 | |||||||||||
1941 | 62.94 | 66.43 | 68.84 | 73.00 | 86.55 | 93.97 | 97.97 | 91.68 | 89.37 | 78.10 | 74.63 | 64.90 | a | 79.03 | ||||||||||||
1942 | 65.84 | 63.79 | 69.52 | 76.79 | b | 88.29 | 97.50 | 98.84 | 93.29 | 93.43 | 81.45 | 77.93 | 67.26 | 81.16 | ||||||||||||
1943 | 63.45 | 71.29 | 74.84 | 85.10 | 90.81 | 94.43 | 97.48 | 90.93 | a | 92.83 | 83.39 | 76.13 | 63.03 | 81.98 | ||||||||||||
1944 | 63.61 | 61.34 | 68.87 | 76.62 | a | 86.37 | a | 93.13 | 97.68 | 96.13 | 90.27 | 85.87 | a | 66.87 | 65.16 | 79.33 | ||||||||||
1945 | 63.63 | a | 67.00 | 66.19 | 76.37 | 85.03 | 92.10 | 94.13 | 91.42 | 90.00 | 82.74 | 74.43 | 64.39 | 78.95 | ||||||||||||
1946 | 57.42 | 66.82 | 71.61 | 83.13 | 84.45 | 97.23 | 92.23 | 89.94 | 88.50 | 76.77 | 67.10 | 67.60 | a | 78.57 | ||||||||||||
1947 | 58.16 | 70.11 | 70.87 | 77.17 | 87.10 | a | 91.97 | a | 95.13 | 89.03 | 91.57 | 82.35 | 66.20 | 59.32 | 78.25 | |||||||||||
1948 | 67.70 | a | 62.41 | 64.87 | 80.83 | 87.90 | 94.13 | 95.10 | 90.58 | 90.33 | 79.68 | 69.10 | 63.00 | 78.80 | ||||||||||||
1949 | 49.90 | 62.75 | 70.52 | 78.04 | d | 85.29 | c | 92.97 | 90.45 | 92.00 | 88.87 | 76.84 | 78.13 | 62.58 | 77.36 | |||||||||||
1950 | 63.81 | 69.11 | 73.16 | 81.20 | 83.32 | 94.40 | 87.10 | a | 93.55 | 89.03 | 89.68 | 78.53 | 72.68 | 81.30 | ||||||||||||
1951 | 62.84 | 65.96 | 69.81 | 75.07 | 85.84 | 92.83 | 95.32 | 90.10 | 92.57 | 82.81 | 70.13 | 61.77 | 78.75 | |||||||||||||
1952 | 66.26 | 63.45 | 61.84 | 74.13 | 87.32 | 93.63 | 94.93 | a | 91.27 | a | 93.23 | 89.39 | 66.90 | 61.74 | 78.67 | |||||||||||
1953 | 69.26 | 65.57 | 71.23 | 75.55 | a | 80.35 | 95.20 | 91.03 | 93.39 | 94.33 | 82.06 | 74.47 | 62.71 | 79.60 | ||||||||||||
1954 | 66.16 | 73.18 | 69.45 | 82.37 | 84.90 | 92.41 | a | 91.39 | 86.68 | 90.83 | 84.00 | 76.77 | 68.32 | 80.54 | ||||||||||||
1955 | 56.68 | 63.14 | 71.94 | 77.10 | 82.48 | 93.77 | 90.32 | 86.10 | 89.97 | 84.13 | 71.47 | 69.87 | 78.08 | |||||||||||||
1956 | 68.45 | 61.44 | b | 75.16 | 75.17 | 88.03 | 95.00 | 90.35 | 88.74 | 93.83 | 81.71 | 71.57 | 64.74 | 79.52 | ||||||||||||
1957 | 60.71 | 72.61 | 68.06 | 75.79 | a | 79.84 | 94.50 | 93.13 | 89.03 | 91.20 | 76.81 | 65.93 | 69.10 | 78.06 | ||||||||||||
1958 | 63.55 | 67.18 | 62.13 | 75.70 | 89.81 | 94.73 | 93.87 | 89.23 | 86.37 | 79.84 | 71.30 | 72.10 | 78.82 | |||||||||||||
1959 | 69.35 | 64.25 | 73.58 | 81.10 | 83.65 | 95.00 | 93.00 | 86.81 | 87.60 | 82.03 | 70.27 | 62.00 | 79.05 | |||||||||||||
1960 | 58.71 | 61.00 | 75.97 | 79.30 | 85.39 | 96.80 | 94.23 | 90.61 | 91.00 | 78.71 | 73.73 | 63.06 | 79.04 | |||||||||||||
1961 | 64.10 | 67.21 | 70.97 | 79.83 | 86.16 | 95.77 | 93.13 | 89.39 | 85.90 | 79.55 | 67.80 | 61.39 | 78.43 | |||||||||||||
1962 | 61.68 | 65.79 | 65.00 | 82.07 | 84.03 | 92.20 | 91.23 | 94.77 | 88.17 | 83.65 | 75.27 | 64.84 | 79.06 | |||||||||||||
1963 | 62.32 | 71.07 | 70.81 | 76.77 | 88.06 | 91.67 | 94.29 | 87.48 | 89.93 | 83.87 | 70.50 | 66.52 | 79.44 | |||||||||||||
1964 | 61.71 | 61.72 | 66.35 | 74.80 | 85.61 | 92.13 | 93.52 | 87.55 | 84.13 | 83.10 | 68.20 | 64.58 | 76.95 | |||||||||||||
1965 | 67.52 | 64.39 | 67.97 | 77.77 | 83.00 | 89.67 | 92.32 | 92.45 | 87.20 | 85.13 | 74.47 | 61.87 | 78.65 | |||||||||||||
1966 | 60.06 | 59.93 | 73.94 | 79.13 | 87.68 | 93.17 | ----- | z | 88.65 | 85.53 | 81.81 | 74.83 | 65.45 | 77.29 | a | |||||||||||
1967 | 67.03 | 69.25 | 75.23 | 75.43 | 84.39 | 89.97 | 89.77 | 90.58 | 87.87 | 83.58 | 74.93 | 58.74 | 78.90 | |||||||||||||
1968 | 63.00 | 69.69 | 68.26 | 74.50 | 84.52 | 94.07 | 90.23 | 87.35 | 88.97 | 84.29 | 70.00 | 65.39 | 78.35 | |||||||||||||
1969 | 67.48 | 64.82 | 67.90 | 79.80 | 85.84 | 91.40 | 91.39 | 92.19 | 88.73 | 79.19 | 69.53 | 65.84 | 78.68 | |||||||||||||
1970 | 65.32 | 69.61 | 67.58 | 74.87 | 87.68 | 94.63 | 94.65 | 90.97 | 85.97 | 79.68 | 75.73 | 68.23 | 79.58 | |||||||||||||
1971 | 67.61 | 66.57 | 77.00 | 78.47 | 82.87 | 92.70 | 94.87 | a | 87.42 | 87.40 | 74.48 | 71.07 | 59.26 | 78.31 | ||||||||||||
1972 | 67.23 | 71.79 | 80.06 | 82.20 | 86.48 | 92.33 | 94.77 | 90.87 | 88.93 | 77.39 | 67.00 | 63.23 | 80.19 | |||||||||||||
1973 | 59.06 | 64.18 | 62.87 | 73.57 | 87.03 | 94.63 | 93.87 | 93.42 | 92.27 | 85.90 | 74.67 | 69.29 | 79.23 | |||||||||||||
1974 | 64.74 | 68.71 | 74.55 | 81.00 | 88.48 | 99.73 | 91.00 | 91.71 | 87.43 | 78.42 | 72.40 | 62.00 | 80.02 | |||||||||||||
1975 | 65.77 | 66.00 | 69.77 | 73.07 | 84.87 | 94.47 | 90.39 | 93.94 | 88.73 | 83.65 | 75.00 | 65.61 | 79.27 | |||||||||||||
1976 | 66.87 | 68.79 | 71.68 | 76.53 | 85.23 | 94.23 | 87.74 | 90.84 | 84.47 | 77.68 | 71.30 | 64.19 | 78.30 | |||||||||||||
1977 | 61.10 | 70.71 | 68.45 | 79.13 | 81.65 | 94.83 | 91.19 | 91.03 | 88.83 | 80.74 | 74.03 | 68.97 | 79.22 | |||||||||||||
1978 | 63.42 | 63.71 | 72.32 | 77.10 | 84.55 | 96.60 | 94.39 | 91.16 | 88.37 | 82.77 | 67.50 | 59.32 | 78.43 | |||||||||||||
1979 | 56.39 | 66.43 | 69.13 | 79.53 | 81.35 | 92.80 | 95.61 | 91.87 | 93.47 | 86.61 | 70.97 | 68.87 | 79.42 | |||||||||||||
1980 | 65.48 | 69.28 | 68.10 | 78.10 | 82.39 | 97.57 | 96.68 | 90.61 | 89.50 | 82.03 | a | 74.43 | 72.32 | 80.54 | ||||||||||||
1981 | 65.39 | 70.96 | 68.48 | 80.20 | 81.90 | 95.43 | 91.87 | 92.45 | 89.63 | 78.45 | 77.37 | 71.77 | 80.33 | |||||||||||||
1982 | 64.60 | a | 68.43 | 72.10 | a | 80.60 | 84.13 | 93.23 | 92.97 | 91.00 | 89.40 | 83.71 | 68.77 | 61.48 | 79.20 | |||||||||||
1983 | 64.65 | 65.50 | 66.58 | 70.67 | 85.03 | 91.27 | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | ----- | z | 73.95 | f | ||||||
Period of Record Statistics | ||||||||||||||||||||||||||
MEAN | 63.34 | 66.61 | 70.78 | 78.06 | 85.57 | 94.60 | 93.69 | 91.11 | 89.51 | 82.09 | 72.44 | 64.73 | 79.22 | |||||||||||||
S.D. | 3.99 | 3.67 | 4.12 | 3.54 | 2.93 | 2.30 | 2.84 | 2.39 | 2.27 | 3.04 | 3.88 | 4.07 | 1.20 | |||||||||||||
SKEW | -0.63 | 0.06 | 0.15 | 0.21 | -0.29 | -0.01 | -0.13 | 0.01 | 0.06 | -0.13 | 0.00 | 0.21 | 0.21 | |||||||||||||
MAX | 71.94 | 73.86 | 80.10 | 87.70 | 92.03 | 99.73 | 98.84 | 96.67 | 94.33 | 89.68 | 79.50 | 72.77 | 81.98 | |||||||||||||
MIN | 49.90 | 58.39 | 61.84 | 70.67 | 78.06 | 89.37 | 87.10 | 86.10 | 84.13 | 74.48 | 65.93 | 56.55 | 76.84 | |||||||||||||
YRS | 74 | 76 | 75 | 75 | 74 | 74 | 71 | 73 | 74 | 74 | 74 | 76 | 62 |